Rosen, Joe. Permeability (Physics). Encyclopedia of Physics. Facts on File science library. New York: Facts On File. 2004 [2010-02-04]. ISBN 9780816049745. (原始内容存档于2020-11-27).
This choice defines the SI unit of current, the ampere: Unit of electric current (ampere). Historical context of the SI. NIST. [2007-08-11]. (原始内容存档于2017-04-25).
Rosen, Joe. Permeability (Physics). Encyclopedia of Physics. Facts on File science library. New York: Facts On File. 2004 [2010-02-04]. ISBN 9780816049745. (原始内容存档于2020-11-27).
This choice defines the SI unit of current, the ampere: Unit of electric current (ampere). Historical context of the SI. NIST. [2007-08-11]. (原始内容存档于2017-04-25).
For an introduction to the subject of choices for independent units, see John David Jackson. Classical electrodynamics Third. New York: Wiley. 1998: 154 [2015-03-07]. ISBN 0-471-30932-X. (原始内容存档于2009-08-04).
For an introduction to the subject of choices for independent units, see John David Jackson. Classical electrodynamics Third. New York: Wiley. 1998: 154 [2015-03-07]. ISBN 0-471-30932-X. (原始内容存档于2009-08-04).